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Natural Pigment Based Dye Sensitized Solar Cells: Photovoltaic Studies: A sustainable energy solution

  • Authors
    Ranwa K.
    Khakhal H.R.
    Kharkwal D.
    Vyas S.
    Ejaz R.
    Abid I.
    Rizwana H.
    Aghayeva S.
    Iqbal R.Corresponding
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  • gnest_06508_in press.pdf
  • Paper ID
    gnest_06508
  • Paper status
    In press
  • Date paper submitted
  • Date paper accepted
  • Date paper online
DOI
https://doi.org/10.30955/gnj.06508
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Abstract

The present research work is carried out on fabrication of natural pigment-based dye-sensitized solar cells (DSSCs) utilizing Lemon leaves and Onion peels extracted dyes as natural photosensitizers. The absorption spectra analysis shows the major peaks for onion peel at 370 nm and 475 nm and 664 nm for lemon leaf that provides valuable insights regarding the narrowing of band gap of TiO2 from standard value (3.25eV) to 2.87 and 2.44 eVby incorporation of Onion peel and Lemon leaf pigments respectively and showing the potential of natural pigments for renewable energy applications. The photovoltaic parameters revealed that the Lemon leaf extract exhibited higher power conversion efficiency (0.92%) than the Onion peel extract with an efficiency of 0.054%. Additionally, impedance analysis was conducted to understand the charge transport and recombination processes within the DSSCs which revealed a better lifetime of 0.0349 sec for lemon leaf and 0.0143 sec for onion peel extracted DSSCs. The preliminary photovoltaic results indicated the potential of Lemon leaf and Onion peel extracts as eco-friendly and cost-effective natural photosensitizers for DSSCs using Platinum free counter electrode.

Cite this article
Ranwa, K. et al. (2024) “Natural Pigment Based Dye Sensitized Solar Cells: Photovoltaic Studies: A sustainable energy solution ”, Global NEST Journal [Preprint]. Available at: https://doi.org/10.30955/gnj.06508.
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  • gnest_06508_in press.pdf